Where does elasticity of springs appear?

It's about springs — coil springs — the kind of spring found in a car's suspension or a retractable pen, the kind that look like a pig's tail or a lock of curly hair. Coil springs are ... Although Hooke's name is now usually associated with elasticity and springs, he was interested in many aspects of science and technology. read more

The “spring force” is being exerted at all points on the spring. Imagine the following: you compressed a spring, then instantaneously cut the spring somewhere and measured the force there. read more

Perfect elasticity is an approximation of the real world. The most elastic body in modern science found is quartz fibre [citation needed] which is not even a perfect elastic body. So perfect elastic body is an ideal concept only. Most materials which possess elasticity in practice remain purely elastic only up to very small deformations. read more

Each spring has constant of elasticity (stiffness) that depends on its material. A simple spring generally is made from metal. Background; Elastic forces of the springs appear at the ends of the springs and material effect on the contact or association with it as it is deformed (Elert, 1998). read more